package com.tenny.bookstore.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class SetCharacterEncodingFilter implements Filter {
    private FilterConfig filterConfig;

    public void init(FilterConfig filterConfig) throws ServletException {
        this.filterConfig = filterConfig;
    }

    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        String encoding = filterConfig.getInitParameter("encoding");
        if (encoding == null) {
            encoding = "UTF-8";
        }
        request.setCharacterEncoding(encoding);//POST�������
        response.setCharacterEncoding(encoding);
        response.setContentType("text/html;charset=UTF-8");
        chain.doFilter(request, response);

    }

    public void destroy() {

    }

}
